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Refactor concurrency handling and improve sleep precision in concurrency.dart and header.dart

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ImBenji
2025-11-23 17:57:30 +00:00
parent 2de17fe720
commit 747f0bd1ed
5 changed files with 48 additions and 124 deletions
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14
dart/lib/concurrency.dart
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@@ -5,7 +5,7 @@ import 'dart:isolate';
import 'dart:math';
import 'package:sweepstore/header.dart';
import 'package:sweepstore/helper_extensions.dart';
import 'package:sweepstore/helpers.dart';
import 'package:sweepstore/structures.dart';
int _randomId() {
@@ -28,17 +28,18 @@ void spawnTicket(RandomAccessFile file, {
void log(String message) {
String prefix = debugLabel != null ? "\x1B[38;5;208m[Ticket Spawner - $debugLabel]:\x1B[0m " : "\x1B[38;5;208m[Ticket Spawner]:\x1B[0m ";
print("$prefix$message");
// print("$prefix$message");
}
void tickSleep([int microsecondVariance = 10]) {
sleep(Duration(microseconds: 100 + Random().nextInt(microsecondVariance)));
preciseSleep(Duration(microseconds: 100 + Random().nextInt(microsecondVariance)));
}
Map<String, int> expSleepTracker = {};
void expSleep(String label) {
int count = expSleepTracker[label] ?? 0;
int sleepTime = (1 << count); // Exponential backoff
sleep(Duration(milliseconds: sleepTime));
// sleepTime = max(1, min(sleepTime, 1000)); // Clamp between 1ms and 1000ms
preciseSleep(Duration(microseconds: sleepTime * 5000));
expSleepTracker[label] = count + 1;
}
@@ -83,6 +84,7 @@ void spawnTicket(RandomAccessFile file, {
expSleep("acquire_loop");
// Ensure we still own the ticket - if not, reset and try again
if (ticketIndex != null) {
SweepstoreWorkerTicket ticket = concurrencyHeader[ticketIndex];
@@ -145,7 +147,7 @@ void initialiseMasterListener(RandomAccessFile file) async {
Isolate.spawn((_) {
void log(String message) {
print("\x1B[38;5;82m[Master Listener]:\x1B[0m $message");
// print("\x1B[38;5;82m[Master Listener]:\x1B[0m $message");
}
RandomAccessFile file = File(filePath).openSync(mode: FileMode.append);
@@ -183,7 +185,7 @@ void initialiseMasterListener(RandomAccessFile file) async {
}
sleep(Duration(milliseconds: 1));
preciseSleep(Duration(milliseconds: 1));
}
}, null);